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12905093 = 23561091
BaseRepresentation
bin110001001110…
…101010000101
3220021122110102
4301032222011
511300430333
61140333445
7214456115
oct61165205
926248412
1012905093
117314873
1243a4285
13289ac66
1419dd045
1511edae8
hexc4ea85

12905093 has 4 divisors (see below), whose sum is σ = 13466208. Its totient is φ = 12343980.

The previous prime is 12905077. The next prime is 12905111. The reversal of 12905093 is 39050921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12905093 - 24 = 12905077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12905003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280523 + ... + 280568.

It is an arithmetic number, because the mean of its divisors is an integer number (3366552).

Almost surely, 212905093 is an apocalyptic number.

It is an amenable number.

12905093 is a deficient number, since it is larger than the sum of its proper divisors (561115).

12905093 is an equidigital number, since it uses as much as digits as its factorization.

12905093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561114.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 12905093 is about 3592.3659334762. The cubic root of 12905093 is about 234.5598703293.

The spelling of 12905093 in words is "twelve million, nine hundred five thousand, ninety-three".

Divisors: 1 23 561091 12905093